1032 MR. L. R. CRAWSHAY ON THE ARTERIAL [Dec. 11, 



both lungs received apically a well-developed artery from the 

 A. intestincdis communis, and one lung (the left) was in equally 

 conspicuous connection with the hepatic portal vein. Both of the 

 normal Aa. puhnonales were well developed. The A. hepatica 

 appeared to be rather smaller than usual, but there was no con- 

 nection between either of the Aa. jmlmoiiales and the liver. 



The abnormal vessels had the appearance on either side of a 

 simple cord lying free in the body-cavity. There was no unusual 

 extension of the mesentery. In the figures, the left lung is 

 drawn out of position to avoid confusion. 



Text-fig. 155. 



Bana temporaria, ^ (X 2). 



Ventral view of hepatic portal vein («jp.), showing abnormal vein from 

 left lung (pois.). ?., spleen ; p^., pylorus ; ro., rectum. 



(The vein is left incomplete in the region of the dotted line owing to the 

 omentum having been much torn at this point.) 



The arteiy to the right lung originated in the A . gastrica dextra 

 opposite to the A. hepatica, and was about equal in size to the 

 gastrica dextra immediately beyond the point where the hepatica 

 was given off. It distributed four vessels to the pancreas and 

 then about half way to the lung divided into two branches, each 

 of which divided again before reaching the apex of that organ. 

 Thei'e was no vein returning to the mesentery from this lung. 



The ai'tery to the left lung arose from tlie distal 7xmius of the 

 A . mesenterica anterior. This ramus first gave oflf a single vessel 

 to the proximal point of the large intestine and then, some 

 distance fvirther on, the pulmonary artery separated from the 



